Molding-machine.



J. R. WOOD & D` C. EPRIGHT.

MOLDING MACHINE. APPLLATIoN min Nov.25\,1913.

Patented Nov. 14, 1916.

2 SHEETSSHEET l.

JVEA/T0155;

Mns/55555.-

GEMM Ya @M UNITED STATES PATENT OFFICE.

JOHN R. WOOD, OF NEWARK, NEW JERSEY, AND DANIEL CURTIS EPRIGHT. OF SPRING CITY, PENNSYLVANIA, ASSIGNORS T0 THE PEERLESS FLASK ANI) MOLDING MACHINE COMPANY, 0F NEWARK, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

MOLDING-MACHIN E.

Leonesa.

Specification of Letters Patent.

.Patented Nov. 1,4, 1916.

Original application led April 14, 1913, Serial No. 760,955. Divided and this application filed November -25, 1913. Serial No. 862,868.

To all whom t may concern.'

Be it known that we, (l) JOHN R. Woon and (2) DANIEL CURTIS EPRIGHT, citizens of the United States, residing at (1) Newark and (2) Spring City, in the counties of (1) Essex and (2) Chester, and States of 1) New Jersey and (2) Pennsylvania'. have invented a certain new and useful Improvement in Molding-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to molding devices and machines, being a division of our application No. 760,955, filed April 14, 1913.

It is the general purpose of this invention to rovide a new and useful sand-retaining and) disengaging device for molds, which device shall be convenient of operation and which shall comprise simplicity of construction with efliciency of operation.

Further and more generally, the invention may be defined as consisting of the cornbinations of elements embodied in the claims hereto annexed and illustrated in the drawin s forming part hereof, whereinigure 1 represents a, side elevation of a molding machine such as shown, in our application aforesaid and having the sand-retaining device applied thereto; Fig. 2 is an end elevation of the fiask and its supporting platform; Fig. 3 a vertical sectional view through the flask, the platform being shown in elevation; Fig. 4 a detail in plan of the bottom of the cope section; and Fig. 5 a detail in section of such cope section.

Describing by reference characters the various parts illustrated herein, 1 denotes generally the base of a molding machine of the rock over type. This base is shown as mounted on casters 2, whereby a truck is provided.

3 denotes a pair of vertical standards projecting upwardly fro of the base, such stan ards affording a pivotal support for the copel and the attached drag. The cope 4 is lprovided with a pair df bracket arms 5, whic are preferably rigidly connected to the shaft 6, carried b tine standards. Each arm 5 is provided with n the central portiony limiting the rotary movement of the cope on the right-hand side of the standards 3, arms 10 are provided which project from the cope and which are adapted to engage stops 11 on the standards.

On one side of the standards 3 a post 12 is provided and on the opposite side of the standards there is a. vertically adjustable platform 13. This platform is provided with posts 14 adapted to enter the guides 15 and to be engaged and operated by cams 16 on a camshaft 17 having an operating lever 18. To prevent the cams from being rocked by the weight of the supported parts, we provide a gravity latch consisting of a lever 19 which is pivoted intermediate of its ends, as indicated at 20, and which has at its lower end an arm 21 which isadapted to drop by gravity beneath the lower surface of the cam 16 when the cam shaft has been rotated a sufficient distance in a platform-elevating direction.

The platform 13 i's provided with posts 22 which are vertically adjustable in the tubular bosses 23.

24 denotes an operating lever which is adapted. through mechanism forming nopart of the invention of this case,to engage the posts and hold them in an adjusted position.

25 denotes a pair of rigid posts carried by the base and located adjacent `to the standards 3, while 26 denotes a pair of posts at one end of the base 1 and pivotally`supported thereby, as shown at 27.

Cooperating with the cope 4 is a drag 28 andthe latter is shown as provided with a bottom board 29 retained in place by the latches 30 carried by the cope.

1n the molding operation, it is necessary to remove the match plate 31, bring the flask sections 4 and 2S into engagement, and then release the mold section which is in the cope and allow it to drop upon the top of the mold. section which is within thedrag.

The parts liereinbcfore described constitute, in their details, no part of the invention which is intended to be secured in and through this application, the construction of the said parts being shown, described and claimed in our application No. 760.955 hereinbcfore referred to. For the purpose of supporting the sand in the `cope prior to the removal 1of the match-plate and of disengaging;r the sand after such removal, we provide the particular construction of sand-retaining and disengaging devices shown in Figs. 2 to 5 of the drawin rihe bottoni nhe cope -L is provided with a flange 4' forming an extended base which carries the sand-retaining plates, Four of these plates are shown, one for each bottom face of the flange. The plates 32, in the con` struction illustrated herein, are mounted on opposite sides of the cope.. fia'nge 4 and are each rovided at opposite ends thereof with incli ed projections 34. .The plat'sf are also opposed to each other and are povided with inclined slots'B adapted to receive the inclined projections 34. 'lfhe plates 32 and 33 are adapted and intendedgtoslide toward and rom the interior-of ,tlie 'eopeland for th' purpose they-are provided with slots 3G which receive the Shanks of the headed pins j at 43. Theo posite end of t or screws 37, carried by thel cope flange -l.

For the purpose of niovingjhe sand-retaining lplates inwardly and. outwardly, the following construction isproi-ided:38 denotes a pair of levers,l each of which is shown as pivote intermediate of its ends on a bolt 39 carried by a lug 40, said lug being formed with Iand projecting from the cope One end of each Vlever is rovided with an operating handle 41, while its opposite end is pivotcd to a link 42 as indicated ie link- 42 is connected wit one of the corners of the plate 33 at the opposite side of the cope rom the said lever, the point of connection being indicated at 44. At the same distance from the pivot 39 as the point of connection 43, each lever 38 is also connected to a plate 32, the point of connection being indicated the cope flange fromlthat 'apparent that the Identically the same construction and connections are provided at the opposite and` of which carries the parts thus described similar numerals 38--45 being employed to 4 designate thesp liliV parts;

' ny ai@ werden@ deman, a Vnai-iw,

plates 33 may bemoved inwardl .-andtowardthe center oftho'copo -b' the' aver 38 andfthat the outer inclined edges of the slots 35 will 'act'upontho'nuterx edgesofgtheinclined projections 34 vto move the' plates 32'inward1y, with the result that the platee 32 and 33 Willvproject'within the ing connections, including inclined Y the said othenplites an the Lr-cndiieoond plaies.

interior of thc cope bottom and there PFU- vide a retaining shelf for the compacted sand, the positions of the parts at this time being shown in Figs. l, 2, and 3. It will be evident that, by moving the lever-handles 41 in the reverse direction, the inner inclned edges of the slots 35 will engage the correspondingly inclined edges of the pro jections 3i, as the plates 33 are moved out wardly, with the result that the sand-retain` device as a whole will be moved outwardly to clear the inner bottom edge ot the cope and permit the sand to drop, the positions of the parts at that time being shown in Fig. 4.

Itwill be apparent that, by the construction yillustrated and described herein, we have provided a sand-retaining device which is simple in construction and efficient in operation, and which may be operated from one side of thc flask. Furthermore, the interengaging parts are so mounted and arranged aste minimize the danger of obstriiction by sand.

l. The combination, with a. iiask section, of a plate slidably supported at'the bottoni of such section, means connected with said plate for moving the saine inwardly and outwardly, a second plate slidably supported at the bottom of said flask section, connections between said 4plate and the first mentioned plate whereby the second plate will be moved inwardly and outwardly by corres movements of the first mentioned p ate, one or more additional plates slidably supported at the bottom of the flask section, engagin connections between the lastnicntioned p ate or plates and the two tirst men` tioned plates whereby such other plate or plates will be moved inwardly and outwardly by corresponding movements of the two first mentioned plates.

"2. The combination, with a flask section, of a plate slidably supported at the bottom of said section, means connected with said. plate for movin the 'same inwardly and outwardly, a second plate slidably supported at the bottom of the flask section, means connecting the' last, mentioned plate with the first mentioned plate whereby the. last 1nen tioned plate will be moved inwar l: and olitwardly with the first mentioned p vate, additional plates slidnbly supported at the bottom of the flasksection, and interengngihg described our invention, what amb ni eresia.

rlitwwill begmerdainv. r ,m6 out- V wtrdiy @aggregation meats ai@ are imI ending and intcriop bottom flange, of plates slidably mounted on opposite sides ot' said flange. levers connectcd to one ol' said plates and adapted to move the saine inwardly and outwardly. links connected with said leversl and with the opposite plate for moving the same inwardly and outwardly simultaneously with the first-mentioned plate. plates mounted on the intermediate sides of the rope bottom flange, and means including inclined slots and projections tor connecting the lastmentioned plates with the first-mentioned plates.

la The combination, with a cope, of plates slidabiy mounted on opposite sides of the bottom of the cope, lewrs connected to one ot said plates and adapted to move the same inwardly and outwardly, links connected with said levers and with the opposite plate for moving,` the same inwardly and ontwardly by the movement of the tirstanentioned plate. plats-s mounted on the intermediate sides oll the cope bottom, and. means connecting the last-mentioninl plates with thc first-mentioned plates.

5, The combination, with a flask section, ot a plurality of segmental plates slidably mounted on the bottom of the said flask section and adapted to be moved within the inner periphery ol' said bottom, means connected with one ot said plates for moving the same, connections between said plate and au opposed plate whereby the last mentioned plate may also be moved inwardly and outwardly as the first mentioned plato is so moved, and connections whereby the movements of the said plates will be trans mitted to the remaining plates.

tl. The combination. with a tlask section` of segmental plates slidahly mounted on thc bottom of the flask section and adapted to be projected inwardly beyond the inner pe` ripherv oil the bottom. operating' means connected with and common to two opposed plates for moving: the sam'A inwardly and outwardly, and intei'eiiga'giiiglr connections between said plates and the other plates.

VThe mmbination, with a flask section, of a pluralit,Y of segmental plates mounted ou the bottom of said section, means connetted with one of the plates for moving.r the -same ini-vardly and outwardly, a connection between said means and another plate whereby the last-mentioned plato may bc moved inwardly and outwardly with the firstfnnntioned platica and interengaging connections, including; inclined slots and projections, between all. ot said plates, whereby th`imovement of the firsbmentioned plate will produce a similar movement in the other plates.

The combination, with a flask section, of plates slidably mounted on the bottom of the flask section, levers pivoted intermedi ate of their ends and lach connected, at one side ot' said pivot. to one of said plates and adapted to move the same inwardly and outwardly, links (tonnel-ting said levers on the opposite sides of their pivots with a plate opposite the first-mentioned plate, and means connectingr the said opposed plates with the intermediate plates. whereby a movement of the opposed plates will produce a correspondingr movement of the intermediate plates.

Si. The combination, with a tlask section, of a plate slidably supported at the bottom ot' said flask section, means whereby said plate may be moved inwardly and outwin-diy, a plurality of plates additional. to the lirst mentioned plate also slidably sup` ported at the bottom of the flask section, and iainnections whereby the movement ol' the first mentioned plate may be transmitted to all of the remaining plates whereby all ol:l said plates may be moved inwardly and outwardly by like movements of tho .lirst nienA tioned plate.

10. The combination, with a flask section, of a pair of opposed plates slidably supported at the bottom of said section, means for simultaneously moving said plates inwardly and outwardly, plates interposed between the ends of the first mentioned plates and also slidably supported at the bottom of the flask section, and means connecting the last pair of" plates with the first pair ot. plates, sui-h connecting means comprising inclined slots formed in thc end portions of the plates comprising one pair and inclined projections 'arried by the end portions of thc plates ot' the other pair and' extending into said slots, whereby the plates comprising the second pair will be positively moved inwari'lly and outwardly by corresponding movements of the first pair of plates through the engagement of the opposite sides of the inclined projections with the opposite sides of their respective inclined slots.

l1. The combination, with a flask section, ot a plate slidably supported at the bottom ot such flask section and movable inwardly' and outwardly, a second plate slidably supported at the bottom of the lask section, means connecting said plates whereby thc movement of one plate will produce a like movement in the other, a plurality of additional plates also slidably supported at the bottom ot' the flask section, interengaging connections between the first and second plates and the other plates whereby the movement of the first two plates will be transmitted to such other plates, such connections including inclined projections earried by some of said plates and inclined slots in the adjacent plates receiving said projections, whereby the movement of the first two plates inwardly and outwardly will cause a corresponding movement in the other plates through the engagement of opposite sides of the slots with opposite sides of their respeotve inclined projections.

In testimony whereof, WeA hereunto alix our signatures in the presence of two witmesses.

JOHN R. WOOD.; y DANIEL CURTIS EPRIGHT. Witnesses:

W. A. PERRINE, SAMUEL P. WATSON. 

